The young astronomer; or, The facts developed by modern astronomy, collected for the use of schools and the general reader (1847)
Abbott, John S. C. (John Stevens Cabot), 1805-1877 · New York, J.C. Riker [etc.] · leaf 82
aze is so inconceivably rare, thatif the tail of the largest Comet which was ever seen,were compressed to the consistency of atmospheric air,it would not occupy, in bulk, the space of one cubicinch. Whether, in any case, the nucleus of a Cometis solid, is a question not yet decided. Comets varyso… … What opinion has Newton expressed ? Is the nucleus ever solid ?What is said of the variety in the appearance of Comets ? What arebearded Comets ? 78 THE YOUNG ASTRONOMER. Comets do not permanently remain the same, but areoften changing their appearance, sometimes as rapidlyand fantastically as the…
Astronomy
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